When buying a used iPhone, future owners pay attention first of all to appearance smartphone.
I would like to take a closer look at the case: examine it for scratches and chips, take a closer look at whether all the details of the case are tightly assembled, whether the lid or even the screen is loose, etc.
More demanding customers check the quality of communication ( speaker and microphone), and some have a desire to check the battery of their future iPhone. So, it is at this point that we will stop.
How to find out the number of battery charge cycles on an iPhone using a PC
In addition to this question, we will help you find out the level of battery wear on the iPhone
To determine the number of battery charge cycles, it is useful useful application called iBackupbot. You just need to download from the proposed page and install on your PC. Then we do everything as in the screenshots below.
After starting the program and iPhone connections to the PC we see such a window. We click on our smartphone, and then in the right part of the window we look for the button “More Information” and click on it.
Immediately after that, a new window of this type will appear:
First point open window is named "Battery". The first sub-item is called "CycleCount". His numerical value, in our case 355, stands for the number of battery cycles our iPhone has.
How to Check the Number of Battery Cycles on an iPhone Using the Mobile App
The second method involves the use of a special mobile application called "Battery Life". You can download it for free from App Store by simply entering the name in the search.
So, the program is installed. Let's run it and see main screen. On the main screen we see the inscription “Wear Level”, the state is “Good”. This is a general measure of the health or battery life of an Apple mobile device.
There are four possible options:
- Perfect (excellent)
- Good (good)
- Bad (bad)
- Very Bad (very bad)
We look for the fourth item "History" and tap on it with our finger. A new window will open in which we are interested in the sub-item "Cycles". Given digital value stands for the number of iPhone battery charge cycles.
That's all. It will be interesting to know your options for solving this problem in the comments.
It is well known that smartphones are real energy guzzlers. Big screens with a juicy picture on the base AMOLED technologies and LCDs quickly empty even the most . But android users can make their phones last longer without recharging if they follow some simple guidelines.
First, a little theory. Many smartphones have lithium-ion or lithium polymer batteries. Both types of batteries are inherently lithium-ion and lack the so-called "memory effect", so you don't have to worry about fully charging the battery and then completely draining it. In some life situations, only partial charging is possible. On the other hand, these batteries suffer from low voltage and it is better to charge them at least a little, than to completely “drain” the “energy tank” of the phone. All this very useful information about the batteries of modern smart phones, AndroidPIT resource columnist Chris Carlon, accompanied by a number of useful, from his point of view, tips that will help users charge their devices less often. Having considered and comprehended them, you can learn a lot of useful things for yourself.
Of course, the user can resort to these tips only in full confidence that he will be able to return the settings back if necessary. Everyone should remember that all changes made to the configuration software mobile and other computer devices, may lead to undesirable consequences for the user. Therefore, any recommendations and advice are in the nature of general reasoning and nothing more. The decision whether to follow them or not is made only by the user and no one else.
First of all, you can store settings select mode manual update applications of your device. If in Play store auto-update is turned on, and you have a lot of applications, then they can be updated at the most inconvenient time for you, devouring battery power (and, of course, Internet traffic). And you won't even know about it.
If you sleep at night and do not use the phone, then the energy consumption will also be reduced. In Japan, teenagers are already renting their smartphones to their parents at night.
Saving mobile electricity
1. If your phone has an AMOLED screen (typical for most Samsung models), give preference to wallpapers in dark colors, since AMOLEDs spend energy only on highlighting color pixels. Black pixels are not highlighted. Therefore, the more black pixels on the screen of your device and the darker the pixels, the less battery power the phone needs.
2. Make the most of it dark themes applications and bootloader, and this will help extend battery life if your phone has an AMOLED screen.
3. Do not use automatic tuning brightness. This feature is attractive at first glance, but the setting it provides is always brighter than required. It will be much better if you manually install minimum brightness the kind where you're still comfortable using your smartphone. You can always increase the brightness when you feel that it is not enough for you. This is one of essential principles saving phone battery power, since the screen is one of the main consumers of electricity in the phone.
4. Turn off vibration. If you do not need this additional signal, then turn it off. It consumes more energy than sound signal. Turn off haptic feedback as well. it interesting feature, but it doesn't really add any real convenience, it only "drains" the battery.
5. Use original batteries or third-party from trusted manufacturers. Slight savings can harm the smartphone, and its battery life will be reduced compared to the standard one.
6. Set the screen timeout to the shortest amount of time you are comfortable with. If the screen turns off after a minute of inactivity, the device will consume four times more power during this time than if the interval were 15 seconds. Research results show that the average user turns on their smartphone 150 times a day. Thus, whatever you do to reduce the number of calls to the phone will benefit its battery. This includes self-control and other methods, the essence of which is to stop aimlessly turning on the phone.
7. Set sleep mode or lock mode for turn off Wi-Fi and mobile transmission data at a time when you do not need these functions. If you do not use your phone at work, then prohibit it from ringing, vibrating and connecting to the Internet for this period of time. However, this advice will be useful to very few. Modern man not ready to turn off mobile communication even at work. But there is such a possibility, and it should be remembered at least just in case.
8. You can also turn off too abstruse features - "air" contactless gestures, smart scrolling (smart scrolling) and the like. This is especially true for Samsung smartphone users. You can follow this advice only if you do not use these functions.
9. Turn off GPS, Bluetooth, NFC, Wi-Fi and data transfer via mobile networks at the time when these wireless features you don't need. Turn on only the wireless features you need given time. For example, there is no point in keeping all the time at the same time enabled Wi-Fi and data transmission over mobile networks.
10. Use lock screen widgets to receive notifications directly on your lock screen if your phone's firmware supports it. If your device has an AMOLED screen, use the black notifications app theme. This will greatly extend the life of the battery.
11. Remove or disable widgets you don't use. This is especially true of widgets that connect to the Internet, in particular weather widgets.
12. Update your apps. One of the reasons developers update their apps is to optimize the use of mobile software phone memory and battery resources. By updating applications on your device, you get the most optimized versions of them. Delete old apps that you no longer use as they may run background processes, loading RAM and battery.
13. If your phone has a power saving mode or other power management tool, use it. If you extend the life of the phone from a single battery charge, then why ignore it?
14. All firmware and myself pure android have a set of settings in their menus that help optimize energy consumption. Find these settings on your device and think about how to apply them effectively. Such settings are also available in Samsung's TouchWiz.
15. Disable automatic synchronization Google accounts. If you do not need to update this or that account every fifteen minutes, just go to settings and turn off auto-sync for these applications and they will stop updating constantly.
16. Set up app updates so that they only happen when the program is loaded. If you rarely (or, conversely, very often) open a particular application, it will be better if it only updates when you access it. Otherwise, it will be updated automatically as notifications arrive and after the time specified by the synchronization interval.
If you follow at least half of these recommendations, Chris Carlon believes, you will find that your battery smart phone began to dissipate more slowly. Maybe you know of another way to extend life cycle battery, which is not included in this collection?
Lithium-based batteries and lithium-polymer batteries are currently used in smartphones and tablets.
Each of them has its own resource, which depends on the correct charging and operating conditions. There is also the concept of a "charge cycle" - today we will learn what it is.
What is a charge cycle?
Charging cycle - a set of processes associated with filling the battery with energy and its full discharge. Their number determines how many times you can charge and discharge the battery.
Accurate data on the number of cycles for lithium batteries no, as these figures may change depending on the correct use. On average, the resource of such batteries is 600-800 pieces. To some, this figure may seem small, but if we assume daily charging and discharging, then 800 cycles - 800 days, that is, more than two years.
How many charge cycles are left?
Let's imagine a situation that within two days the phone was discharged by 50% both times and without fail charged up to 100%. In this case, 1 charge cycle was used. Such moments can be repeated regularly, resulting in slower exhaustion of cycles and prolonging battery life. For this reason, many experts recommend not waiting for a deep discharge of the smartphone and regularly putting it on charge.
There is a relationship between the remaining energy in the battery and the number of cycles. Remaining charge level,% - the remaining number of cycles:
- 90 - 4700.
- 75 - 2500.
- 50 - 1500.
- 0 - 500.
The table shows that if you discharge your smartphone by 50% daily, then the number of charge cycles will be about 1500.
What is the best way to charge a smartphone?
It is important to understand that you cannot keep a fully charged smartphone constantly connected to a charger, for example,. No, overcharging will not occur as the charge controller will cut off current flow, but constant fall energy reserve to 99% and subsequent replenishment to 100% will lead to a decrease in the number of charge cycles.
Best of all, recharging the battery, which occurs under the control of the user, has proven itself. As soon as the indicator of 90-100% is reached, you need to disconnect the gadget from the network. Of course, in Everyday life it is difficult to ensure ideal battery operating conditions, but one should try to follow.
The following factors affect the reduction in the number of possible charge cycles of the battery and the decrease in its capacity:
- battery overheating;
- regular depletion of charge to 0%;
- use of non-original charger ().
Even if it is possible to extend the life of the battery by 2-3 years, the natural aging of its constituent elements will still lead to a decrease in capacity by 15-20%.
All batteries are made up of a cathode, an anode and an electrolyte. Charge builds up on charges where a chemical reaction takes place. It is reversed, and in the case of charging, it flows in the opposite direction. The cathode is a negatively charged plate and the anode is a positively charged plate.
Lithium-Ion batteries consist of an anode composed of Lithium and Cobalt oxide and a cathode composed of carbon. When you charge your battery, electrons flow from the anode to the cathode, when discharging - in the opposite direction
- at the anode LiCoO 2 => Li 1-x CoO 2 xLi + xe -
- at the cathode С + xLi + xe − > CLi x
Of the main advantages - more voltage, and no memory effect
New generation cell phones are usually equipped with new types batteries- Li-Pol (Lithium polymer) batteries. The differences are in another type of electrolyte, which consists of a gel-like substance of a polymeric nature. This technology allows you to make batteries with any size (up to 1 mm thick), more environmentally friendly and capable of delivering a higher current. Do not cause spontaneous combustion. New technology becomes more popular.
The battery needs to be charged for a long time. What's the point?
All mobile devices have inside information relative to the memory charge of the device, and it is determined by the maximum and minimum voltage required for operation. The maximum developed voltage will automatically stop charging your battery (power controller), so what will you put on for the night, and what will you wait for a signal about full charge no difference. But the first turn on determines your normal capacity for an accurate display of battery life.
The battery must be fully charged and completely discharged to zero, and at first this should be done 10 times to have full capacity It makes no sense, as there is no memory effect
As we told in the previous review about batteries, it is Li-batteries that do not have a pronounced memory effect.
What is the memory effect This is a reversible battery capacity loss effect, applicable to NiCd (Nickel Cadmium) and Ni-Mh (Nickel Metal Hydride) batteries. Based on the formation of crystalline formations in the structure of the electrodes, which makes it difficult to exchange electrons and ions, reducing the working surface. Eliminated by full deep discharge and charging the battery several times. It leads to almost the restoration of battery capacity, or approaching it. The disadvantage of these types of batteries was large size, low capacity and voltage.
And since there is no memory effect, is it harmful or pointless to deeply discharge it? It turns out that something bad is going on. Deep discharge below the lower threshold of 3.0V may cause the device to turn off, but this does not mean that the battery has stopped wasting energy. 'Cause she's wasted on work system device(memory), the response to the control buttons (how will they turn on?) and keeps your device in "sleep mode". And what will happen? But it turns out that the loss of charge up to 2.5V can lead to the loss of the ability to charge the battery, and it will have to be charged separately with a weak current of 0.1C, bringing it back to life. It is logical to assume that this will affect its capacity. The conclusion can be drawn as follows Better to always have a charge than to discharge it to the end!
The battery lasts regardless of the operating time, but depends on the number of discharge cycles FALSE
This statement turns out to be completely false. Regarding the service life - The battery willy-nilly loses its charge (even when disconnected), and as we mentioned in paragraph 2 - this can lead to a discharge to 3V and below, and cut off the device's capacity. Optimum temperature to save charge and weak exchange - 5 degrees ( normal temperature refrigerator). Therefore, it makes no sense to buy a battery for future use, if you do not (1) store them in the refrigerator and (2) recharge them periodically.
We get a picture that discharge cycles affect the operation of the device. But in fact, not the quantity itself, but the duration of work affects it. Batteries are subject to aging and capacity normally declines by 10% at 500-800 cycles. That is, for a year of operation of the device, the capacity will normally fall by 5-10% .
Regarding temperature. At a temperature of minus 20, the battery begins to refuse both charging and working. And, when the temperature rises above plus 40 Celsius, the situation repeats itself. Also heat greatly reduces battery capacity -20С, +40С - destructive temperature limits, comfort zone +20С
In total, we received enough information, refuted the false one, and will finally conclusion:
- When buying a device (smartphone), pay attention to the year of manufacture of the battery. If the product came out a year ago, pay attention to the battery life.
- Be sure to fully charge the battery to 100% the first time you turn it on, this will help the phone determine your normal capacity.
- Remember that after two years of service, the capacity will drop and then you can look for a new battery.
- Charge at room temperature and do not charge in the cold
- Don't let your battery drain completely
- If stored in a cold environment, allow the battery to warm up and then only recharge if it is an additional battery.
